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Petroleum and natural gas industries — Guidelines for the marine interfaces of hybrid LNG terminals

PD ISO/TR 17177:2015

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National foreword

This Published Document is the UK implementation of ISO/TR 17177:2015.

The UK participation in its preparation was entrusted to TechnicalCommittee PSE/17, Materials and equipment for petroleum, petrochemicaland natural gas industries.

A list of organizations represented on this committee can be obtained onrequest to its secretary.

This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application.

© The British Standards Institution 2015.Published by BSI Standards Limited 2015

ISBN 978 0 580 87475 8ICS 75.200

Compliance with a British Standard cannot confer immunity fromlegal obligations.

This Published Document was published under the authority of theStandards Policy and Strategy Committee on 30 April 2015.

Amendments/corrigenda issued since publication

Date Text affected

PUBLISHED DOCUMENTPD ISO/TR 17177:2015

This is a preview of "PD ISO/TR 17177:2015". Click here to purchase the full version from the ANSI store.

© ISO 2015

Petroleum and natural gas industries — Guidelines for the marine interfaces of hybrid LNG terminalsPétrole et industries du gaz naturel — Lignes directrices pour les interfaces de terminaux hybrides de GNL

TECHNICAL REPORT

ISO/TR17177

Reference numberISO/TR 17177:2015(E)

First edition2015-04-01

PD ISO/TR 17177:2015

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ISO/TR 17177:2015(E)

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Published in Switzerland

PD ISO/TR 17177:2015

This is a preview of "PD ISO/TR 17177:2015". Click here to purchase the full version from the ANSI store.

ISO/TR 17177:2015(E)

Foreword ..........................................................................................................................................................................................................................................vIntroduction ................................................................................................................................................................................................................................vi1 Scope ................................................................................................................................................................................................................................. 12 Terms,definitions,andabbreviatedterms ............................................................................................................................... 1

2.1 Terms and definitions ....................................................................................................................................................................... 12.2 Abbreviated terms ............................................................................................................................................................................... 3

3 Hazards of LNG and high pressure natural gas (HPNG) transfer ........................................................................ 43.1 General ........................................................................................................................................................................................................... 43.2 Hazards of LNG ....................................................................................................................................................................................... 43.3 Hazards of high pressure natural gas .................................................................................................................................. 53.4 Potential hazardous situations associated with hybrid LNG terminal operations ....................... 5

4 Siting of facility ....................................................................................................................................................................................................... 64.1 General ........................................................................................................................................................................................................... 64.2 Metocean conditions .......................................................................................................................................................................... 64.3 Geological conditions and hazards ........................................................................................................................................ 74.4 Environmental and socio-economic impacts ................................................................................................................ 7

5 Marine transfer systems ............................................................................................................................................................................... 85.1 General ........................................................................................................................................................................................................... 85.2 Marine loading arms (MLAs) for LNG and HPNG ...................................................................................................... 8

5.2.1 Marine loading arms for LNG ................................................................................................................................ 85.2.2 Marine loading arms for high pressure natural gas (HPNG MLA) ........................................ 9

5.3 Marine hose transfer systems .................................................................................................................................................... 95.3.1 Hose systems for LNG transfer ............................................................................................................................ 95.3.2 Hose systems for HPNG transfer ..................................................................................................................... 10

6 Marine operations ...........................................................................................................................................................................................106.1 General ........................................................................................................................................................................................................ 106.2 Terminal information ..................................................................................................................................................................... 106.3 Marine exclusion zones ................................................................................................................................................................ 116.4 Marine interface .................................................................................................................................................................................. 11

6.4.1 General................................................................................................................................................................................... 116.4.2 Mooring arrangements and fenders ............................................................................................................ 116.4.3 Berthing and mooring aids .................................................................................................................................. 126.4.4 Manifold arrangements ........................................................................................................................................... 126.4.5 Electrical isolation .......................................................................................................................................................126.4.6 Hose supports and handling ............................................................................................................................... 13

7 Data and voice communications .......................................................................................................................................................138 Hazard management .....................................................................................................................................................................................13

8.1 General ........................................................................................................................................................................................................ 138.2 Protection of leakage of LNG and HPNG ........................................................................................................................ 138.3 Fire and explosion hazard management ........................................................................................................................ 14

8.3.1 General................................................................................................................................................................................... 148.3.2 Firefighting and emergency response ........................................................................................................14

9 Security........................................................................................................................................................................................................................1510 Access and egress ..............................................................................................................................................................................................1511 Cargo transfer .......................................................................................................................................................................................................16

11.1 General ........................................................................................................................................................................................................ 1611.1.1 Management and communication ................................................................................................................. 1611.1.2 Conditions to be fulfilled prior to the transfer of LNG .................................................................1611.1.3 Conditions to be fulfilled prior to the transfer of HPNG .............................................................1611.1.4 Cargo transfer operations ..................................................................................................................................... 16

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Contents Page

PD ISO/TR 17177:2015

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ISO/TR 17177:2015(E)

11.1.5 Normal disconnection ..............................................................................................................................................1611.2 Emergency shut-down and emergency release systems .................................................................................17

11.2.1 General................................................................................................................................................................................... 1711.2.2 Emergency shut-down and emergency release systems for LNG MLA .........................1711.2.3 Emergency shut-down and emergency release systems for LNG transfer hoses .1711.2.4 Emergency shut-down and emergency disconnect systems for HPNG MLA ............1711.2.5 Safety and maintenance of transfer systems ........................................................................................18

12 Custody transfer measurement system .....................................................................................................................................1913 Provision and training of staff .............................................................................................................................................................19Annex A (informative) ESD I and ESD II systems — Typical arrangements ..............................................................20Annex B (informative)Typicalconfigurations ........................................................................................................................................24Bibliography .............................................................................................................................................................................................................................27

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PD ISO/TR 17177:2015

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ISO/TR 17177:2015(E)

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).

Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.

For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers to Trade (TBT), see the following URL: Foreword — Supplementary information.

The committee responsible for this document is ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries.

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PD ISO/TR 17177:2015

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ISO/TR 17177:2015(E)

Introduction

The recent expansion of the LNG industry has led to the development of marine LNG facilities and transfer systems that differ from conventional LNG facility designs. These LNG transfer facilities can require additional or alternative systems and/or operational procedures to enable their safe operation. This Technical Report is intended to provide guidance for aspects of these facilities not covered by current standards and guidelines.

vi © ISO 2015 – All rights reserved

PD ISO/TR 17177:2015

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Petroleum and natural gas industries — Guidelines for the marine interfaces of hybrid LNG terminals

1 Scope

This Technical Report provides guidance for installations, equipment and operation at the ship to terminal and ship to ship interface for hybrid floating and fixed LNG terminals that might not comply with the description of “Conventional LNG Terminal” included in ISO 28460.

This Technical Report is intended to be read in conjunction with ISO 28460 to ensure the safe and efficient LNG transfer operation at these marine facilities.

This Technical Report also addresses high pressure natural gas (HPNG) at the transfer interface at facilities where liquefaction or regasification is undertaken, but does not describe requirements for the process plant generally forming part of the terminal facility.

These guidelines are based around facilities that are currently in operation or under development.

2 Terms,definitions,andabbreviatedterms

2.1 Termsanddefinitions

For the purposes of this document, the following terms and definitions apply:

2.1.1as low as reasonably practicableALARPreducing a risk to a level that represents the point, objectively assessed, at which the time, trouble, difficulty, and cost of further reduction becomes unreasonably disproportionate to the additional risk reduction obtained

2.1.2conventional onshore LNG terminalLNG export or receiving terminal that is located on-shore and that has a marine transfer facility for the loading or unloading of LNG carriers in a harbour or other sheltered coastal location

Note 1 to entry: A conventional onshore LNG terminal typically includes marine transfer facility comprising a jetty equipped with loading arms or similar to enable the transfer of LNG between ship and shore.

2.1.3double bankto moor two vessels moored alongside each other at a terminal

Note 1 to entry: An example of double banking as part of a hybrid LNG terminal is where an LNGC moors and transfers LNG alongside an FSRU or FSU.

2.1.4emergency release couplingERCdevice to provide a means of quick release of LNG transfer system when such action is required only as an emergency measure

TECHNICAL REPORT ISO/TR 17177:2015(E)

© ISO 2015 – All rights reserved 1

PD ISO/TR 17177:2015

This is a preview of "PD ISO/TR 17177:2015". Click here to purchase the full version from the ANSI store.